<template>
    <div class="login_container">
        <div class="login_box">
            <!-- 头像区域 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!-- 登录表单区域 -->
            <el-form label-width="0" class="form_login" :model="loginForm" :rules="loginFormRuls" ref="loginFormRef">
                <!-- 用户名 -->
                <el-form-item prop="username">
                    <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item prop="password">
                    <el-input prefix-icon="iconfont icon-3702mima" v-model="loginForm.password" type="password"></el-input>
                </el-form-item>
                <!-- 按钮区域 -->
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>
<script>
export default {
    data() {
        return {
            // 登录表单数据绑定
            loginForm: {
                username: '',
                password: ''
            },
            // 登录表单数据验证规则
            loginFormRuls: {
                username: [
                    { required: true, message: '请输入登录名称', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password: [
                    { required: true, message: '请输入登录密码', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ]
            }
        }
    },
    methods: {
        // 点击重置
        resetLoginForm() {
            this.$refs.loginFormRef.resetFields();
        },
        // 点击登录
        login() {
            this.$refs.loginFormRef.validate(async valid => {
                if(!valid) return;
                const { data: res } = await this.$http.post("login", this.loginForm);
                if(res.meta.status !== 200) return this.$message.error("登录失败");
                this.$message.success("登录成功");
                window.sessionStorage.setItem("token", res.data.token);
                this.$router.push("/home");
            });
        }
    }
}
</script>
<style lang="less" scoped>
    .login_container {
        background: #2b4b6b;
        height: 100%;
    }
    .login_box {
        width: 450px;
        height: 300px;
        background: #ffffff;
        border-radius: 3px;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        // 头像区域
        .avatar_box {
            width: 130px;
            height: 130px;
            border: 1px solid #eee;
            border-radius: 50%;
            padding: 10px;
            box-shadow: 0 0 10px #ddd;
            position: absolute;
            left: 50%;
            transform: translate(-50%, -50%);
            background: #ffffff;
            img {
                width: 100%;
                height: 100%;
                border-radius: 50%;
                background: #eee;
            }
        }
        // 登录表单区域
        .form_login {
            position: absolute;
            bottom: 0;
            width: 100%;
            padding: 0 20px;
            box-sizing: border-box;
            .btns {
                display: flex;
                justify-content: flex-end;
            }
        }
        
    }
</style>
